[autotest] Disable/Reduce retry on paygen and provisioning

Failure of paygen and provisioning very often involve killing
the duts.

E.g:
https://wmatrix.googleplex.com/reasons?suites=paygen_au_canary&
tests=autoupdate_EndToEndTest.paygen_au_canary_test_full&
include_invalid=True&days_back=60

https://wmatrix.googleplex.com/reasons?suites=paygen_au_dev&
tests=autoupdate_EndToEndTest.paygen_au_dev_test_full&
include_invalid=True&days_back=60

Retrying these tests become very risky. This cl reduces
the retry to 1 for paygen and remove retry for provisioning.

TEST=None
BUG=chromium:460174
DEPLOY=scheduler

Change-Id: I5d17be80f343f66272a371be7bcc9d1ecf55f075
Reviewed-on: https://chromium-review.googlesource.com/253810
Reviewed-by: Chris Sosa <sosa@chromium.org>
Commit-Queue: Fang Deng <fdeng@chromium.org>
Tested-by: Fang Deng <fdeng@chromium.org>
diff --git a/global_config.ini b/global_config.ini
index 52d9a53..78d99c1 100644
--- a/global_config.ini
+++ b/global_config.ini
@@ -159,7 +159,7 @@
 # max_repair_limit sets how many times a single HQE will go through
 # repairing -> requeued -> fail -> repairing
 max_repair_limit: 2
-max_provision_retries: 1
+max_provision_retries: 0
 drone_build_externals: False
 inline_host_acquisition: USE SHADOW INLINE_HOST_ACQUISITION